Safety razor



J. HOLTZMAN May 8, 1934.

SAFETY RAZOR Originl Filed July 25. 19?

INVENTOR Joim lialfizman.

ATTORNEY Patented May 8, 1934 SAFETY RAZOR John Holtzman, New York, N. Y.

Application July 25, 1925, Serial No. 46,068 Renewed April 5, 1930 4 Claims.

This invention relates to a safety razor. The object of the invention is the production of a razor which is specially adapted for shaving under the arms of the user, and it may be used for 5 various other purposes. A second object of the invention is the production of a device in which the portions thereof can be folded. A third object is the production of a safety razor, in which means are provided to indicate different zones of the sharpening edge of its blade. A fourth object of the invention is the production of a device with a normally round blade, which is bent when in operative position to provide an elliptical shaped shaving edge.

In the accompanying drawing Fig. 1 represents a section as on the line 1, 1, of Fig. 3, of a safety'razor exemplifying the invention; Fig. 2 shows a section of Fig. 3 as on the line 2, 2; Fig. 3 indicates a top plan View of the safety razor and Fig. 4 represents a top plan view of the razor blade of the razor, before being clamped in position.

The razor comprises a handle with the member 20, which has formed therewith the bifurcated hinge member 21. The other hinge member 22 of the handle has formed therewith the second member 23 of the handle. An interiorly threaded opening 24 is formed in the member 23.

' A hinge pin 25 connects the hinge members 21 and 22. The hinge pin 25 at one end thereof extends through and beyond the member 23 with the extension 26, and has formed therewith the head 2'7. A locking sleeve 28 with the bayonet opening 29, encircles the handle of the razor and its opening 29 is adapted to engage the extension 26 of the pin 25.

A razor blade holder is designated in its en tirety by the letter 30. Its perimeter 31' is elliptical in shape and has formed therewith the central concave-convex crown with the upper convex face 32, and the lower concave face 33. At one side of the holder 30 is formed the cup shaped front guard 35, with the outer flange 36,:

the upper face 37 of which latter coincides with acontinuation of the convex face 32. At the other side of the holder 30 is formed the cup shaped rear guard 4:0, the outer end 41 of which extends above the continuation of the convex face 32. At a pair of the ends of the holder 30 are formed locking recesses 4.2.

A concavo-convex clamping member is designated'in its entirety by the numeral 45, and is shown with the lower concave face 46, and the upper convex face 47. A threaded shank 49 extends from the face 46, and is normally in threaded engagement with the threaded opening 24. A pair of lips 50 extend from the clamping member 45 and engage the locking recesses 42 of the holder 30. .It will be noted that a section taken on the line 2, 2 (Fig. 3) of the razor blade holder 30 and the clamping member 45 present straight lines for their upper and lower faces.

The razor blade 55 is normally circular in contour, and is shown with the sharpening edge 56. It has indicated thereon the division lines 57 which divide its sharpening edge 56, into four quadrants indicated by the numerals 1, 2, 3 and 4. By means of the said quadrants, four cutting zones are provided for the razor blade. A central opening 59 is formed in the blade 55.

To locate the razor blade 55 in place in the razor, the clamping member 45 is unscrewed from the member 23 of the handle and the razor blade 55 is placed upon the holder 30; Next the threaded shank 49 is passed through the opening 59 of the said blade, and located in threaded engagement with the threaded opening 24 of the member 23 of the handle. Bythis means the razor blade 55 is shaped to assume an elliptical shape, as indicated in Fig. 3 at 60. Before the razor blade is located in place, the locking sleeve 28 is locked with the extension 26 of the hinge pin 25 to maintain the members 20 and 21 of the handle in alignment. When the razor is not in use the holder 30 with its appurtenances may be located in folded position, as shown in dotted lines in Fig. 1. This is accomplished by unlocking the locking sleeve 28 from the extension 26 of the hinge pin 25.

It will be noted that the razor blade 56 can be turned through any angle, so that every portion of its circumference can be effective as a shaving edge.

Various modifications may be made in the invention and the present exemplification is to be taken as illustrative and not limitative thereof.

Having described my invention what I desire to secure by Letters Patent and claim is:

1. A razor comprising, in combination, a handle, a guard mounted thereon, said guard being formed with recesses adjacent the side edges of the same, a clamping plate for cooperation with said guard, said clamping plate having complementary projecting lips adapted to enter the recesses in said guard, a blade normall circular in outline to be positioned between said clamping plate and guard members, the cutting edge of said blade extending to a point adjacent said lip members but not in contact with the same and means for maintaining the outline.

2. In a safety razor, a normally flat blade pro- 8 vided with a central aperture and otherwise impertorate and sharpened about its entire periphery to form an uninterrupted continuous cutting edge, a guard member elliptical in outline and having a smooth unserrated edge and provided with a pair of spaced depressions of uniform width arranged inwardly of said edge and concentric therewith and provided further with a pair oi. diametrically opposed rectangular each arranged substantially midway between the adjacent ends of said depressions, and with a central aperture, a clamping member arranged above the blade, a threaded stud projecting from the clamping member through the apertures of the blade and guard member, end edges on the clamping member each shaped to correspond to the adjacent elliptical periphery o! the guard member, the portions of the clamping member adjacent said ends covering part or the cutting edge of the blade, a centrally arranged lug depending from each or said ends and adapted to enter one of the recesses 01' the guard member, a side edge on the guard member having an intermediate arcuate portion thereof concave outwardly and having terminal arcuate portions or less concavity than that 01' the intermediate portion and joined to said intermediateportion to form projections at the points at juncture, said side edge exposing opposed cutting edg'es of the blade of less length than that or theguard member and oi. said depressions, and means adapted to engage the stud (or drawing the clamping and guard members together with the blade therebetween to flex the blade into convex curvature on the guard member and to change the periphery of the blade into elliptical outlinegconcentric with the out-,

line or the guard member.

8. In a safety razor, a guard member elliptical in outline and having a convex upper surface, a clamping member having a concave inner surface for co-operation with the convex surface or the guard member, means carried by said clamping member for drawing the clamping member toward 'said guard member, a razor blade normally circular in outline adapted to be positioned between said members, said blade becoming elliptical when drawn into contact with said guard member, said blade having a continuous uninterrupted cutting edge and a central aperture serving as a positioning means to permit the blade to be rotated whereby the effective portions of the cutting edge may be changed, opposed arcuate end portions on the clamping member covering and rendering ineflective the remaining portions or the cutting edge, a pair of opposed eflective cutting edges being thus provided on said blade, and a side edge on the clamping member concavely recessed to provide outwardly extending projections thereon to reinforce the clamping member and to expose a substantial portion oi. the blade inwardly of the adjacent effective cutting edge thereof.

4. A safety razor including m combination, a handle, a convex guard member on said handle provided with a pair 01 spaced curved channel depressions concentric with the peripheral edge of the guard member, a clamping plate for association with said guard member, a circular razor blade adapted to be positioned between the members and when clamped in position, becoming of elliptical outline, said blade having an endless, continuous, and uninterrupted cutting edge, a side edge on the clamping member concavely recessed intermediate its ends to expose a substantial part of the surface of the blade, and end edges on the clamping member overlapping the adjacent ends or the depressions and covering portions of the cutting edge to render the same ineffective and to provide a pair of spaced efl'ective cutting edges on the blade when the blade is in its operative position in the razor.

JOHN HOLTZMAN. 

